andyhessler

I wanted to see if there's anyone that has experienced a cracked intake manifold? I've got a 2002 Outback with the 2.5 boxer. 176k miles. There's a long saga that got me to this point... but...I replaced the MAP sensor...and looked down the hole...and saw a puddle of antifreeze. The engine is pretty happy at 2000 rpm and above...but won't idle and cuts out. The RPMs will also oscillate wildly from 700 to 3000 rpm if I let her sit there and do her thing. White smoke out the exhaust. Can the coolant passages crack and pass coolant into the intake air passages? I appreciate any ideas you all might have. Thanks.

Well, I bought injectors...that turned out to be the wrong ones. So, I ended up returning them (so to say). I saw some discoloration on the one injector I did remove. It was very asymetrical in that only a 1/4 of the nose of the injector nozzel was showing this pattern. Anyone have experience with that? I didn't get to inspect the other ones. (quite a bear to pluck then out). Thanks! (There's snow on the ground! Which makes a Suby driver very happy in deed!)

Seems like the O2 sensor will be a good place to look. The filters are replaced pretty regularly. And, when I say 'cold', it's just that it hasn't been running...not that the outside air temp is really cold. Today I drove it and it seemed to be much happier with some Front Transaxel gear oil being added and of course the new plugs. Still the same issue exists but maybe to a little lesser degree. I'll have to read up on what this site says about the O2 sensor. I'll let you know how the hear transplant goes. Thanks,

My 1997 Legacy L wagon seems to hesitate when accelerating when it's cold and then runs like a champ when it's warmed up a bit. It's done this to some degree since I bought it at 114k. Now at 174k it's showing some signs of degraded gas mileage and more of a tendency to buck and run rough. When I accelerate hard, like on the freeway, it takes off like there's no tomorrow. Fuel filter is ok and changed regularly. I put new plugs yesterday in and new wires a little while ago. It would seem odd if the pressure regulator is bad since the idle noise changes noticeably when I remove the vac hose. And I can't imagine the fuel pump being bad while I can still accelerate hard when I need to. It's just when I pull away from a stop light it kind of just chokes and then surges back to life. Then it runs just a little rough until it warms up. I'm planning on buying some rebuilt injectors...and crossing my fingers. Any other ideas would sure help. Thanks. I'm new to the forum. Please bear with me. (Yes, this is all I have to do on Christmas Eve!) Merry Christmas.